PCCP (prestressed concrete cylinder pipe) hoisting and laying device and laying method thereof

Abstract

The invention relates to the technical field of pipe carrying equipment, in particular to a PCCP hoisting and laying device and a laying method thereof.The PCCP hoisting and laying device comprises a pair of guide rails arranged at the bottom of an inner cavity of a foundation pit in parallel, and any guide rail is arranged in the guiding direction of the foundation pit; the pair of gantry cranes are arranged on the pair of guide rails, and the pair of trolleys of any gantry crane is connected with the pair of guide rails and used for hoisting and carrying pipes to be laid; the winch is fixedly arranged in a foundation pit, and the execution end of the winch is connected with the pipe. The control terminal is electrically connected with the pair of gantry cranes and the winch and used for controlling the pair of gantry cranes and the winch to operate. The pair of auxiliary butt joint modules is arranged in the foundation pit, and the pipe is located between the pair of auxiliary butt joint modules and used for assisting butt joint of the pipe to be laid and the laid pipe. The problem that in the prior art, the safety risk of pipe hoisting butt joint operation is large is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of pipe handling equipment, and in particular to a PCCP pipe hoisting and laying device and a laying method thereof. Background Art

[0002] PCCP (Prestressed Concrete Cylinder Pipe) is a prestressed steel cylinder concrete pipe, which is a water pipe made by winding a circumferential prestressed steel wire on a high-strength concrete pipe core with a steel cylinder, and then spraying a dense cement mortar protective layer on it. It is a composite pipe composed of thin steel plates, high-strength steel wires and concrete.

[0003] During the laying of large-diameter PCCP pipes, when the pipes are connected, two drivers are generally required to drive two truck cranes or crawler cranes on the construction access road respectively, lift the two ends of the pipes to be laid in the foundation pit, and connect the pipe ends of the pipes to be laid in the foundation pit with the pipe ends of the laid pipes. During this process, at least one worker is required to stand on the side of the port of the finished pipe in the foundation pit to direct, which requires a high degree of coordination between the three parties and poses a high risk of operational safety. Summary of the invention

[0004] In view of the technical problems existing in the prior art, an embodiment of the present invention provides a PCCP pipe hoisting and laying device, comprising: A pair of guide rails are arranged in parallel at the bottom of the inner cavity of the foundation pit, and any one of the guide rails is arranged along the guide of the foundation pit; A pair of gantry cranes are arranged on a pair of guide rails, a pair of trolleys of any gantry crane are respectively connected to the pair of guide rails, and a lifting device of the pair of gantry cranes is respectively connected to both ends of the pipes, for lifting and transporting the pipes to be laid; The winch is fixedly installed in the foundation pit, and the execution end of the winch is connected to the pipe; The control terminal is electrically connected to a pair of gantry cranes and a winch, and is used to control the operation of the pair of gantry cranes and the winch.

[0005] Furthermore, the device also includes: a pair of auxiliary docking modules, which are arranged in the foundation pit, and the pipe is located between the pair of auxiliary docking modules, and the auxiliary docking modules are used to assist the pipe to be laid to dock with the pipe that has been laid.

[0006] Furthermore, the auxiliary docking module includes: A pair of bearing brackets are arranged at the bottom of the inner cavity of the foundation pit, and a pair of bearing brackets are located on one side of the pipe material to support the pipe material; A pair of assembly protrusions are respectively fixedly arranged on a pair of bearing brackets.

[0007] Furthermore, the support frame comprises: A bottom plate, movably arranged in the cavity between the pipe and the bottom of the inner cavity of the foundation pit; The side plate is fixed on the top of the bottom plate, the side plate is perpendicular to the bottom plate, and the side plate is arranged in parallel with the pipe; The baffle is fixedly arranged on the top of the bottom plate, and is fixedly connected to the side plate. The baffle is located in a space enclosed by the bottom plate, the side plate and the pipe.

[0008] Furthermore, the auxiliary docking module also includes: a padding component, which is arranged on a pair of bearing brackets, and the padding component is connected to a pair of assembly protrusions and is used to fill soil between the pipe and the bottom of the inner cavity of the foundation pit.

[0009] Furthermore, the cushioning component comprises: A fixed bracket, fixedly arranged at the bottom of the inner cavity of the foundation pit; A pair of first assembly notches are respectively provided on the side plates of the pair of bearing brackets, the positions of the pair of first assembly notches match each other, the pair of first assembly notches are combined to form a feed inlet, and the feed inlet is connected to the cavity between the pair of baffles; A feeding channel is arranged on one side of a pair of supporting brackets, an input port of the feeding channel is arranged on the top of the feeding channel, and an output port of the feeding channel is connected with the feeding port; A pair of first clamping grooves are provided on the end surface of the output end of the feeding channel, and the pair of first clamping grooves are respectively clamped with a pair of assembly protrusions to fix the feeding channel on the pair of bearing brackets; A push plate, movably arranged in the inner cavity of the feeding channel, the push plate matches the radial cross-sectional shape of the inner cavity of the feeding channel; A one-way damping telescopic rod is fixedly arranged on a fixed bracket, and a head end of the one-way damping telescopic rod is hinged to the push plate; An electric telescopic rod is arranged on a fixed bracket, and a rear end of the electric telescopic rod is hinged to the fixed bracket; The hinge mechanism is arranged at the head end of the inner rod of the electric telescopic rod. The hinge mechanism is connected to the push plate and is used for hingedly assembling the head end of the inner rod on the push plate.

[0010] Further, the articulated mechanism comprises: The receiving groove is provided at the head end of the inner rod, and the receiving groove is arranged along the axial direction of the inner rod; A pressure sensor is fixedly arranged on the bottom wall of the inner cavity of the accommodating groove, and the pressure sensor is electrically connected to the electric telescopic rod; A first hinged protrusion is fixedly arranged on the push plate; A first hinge hole is provided on the first hinge protrusion; A second hinged protrusion is movably arranged in the inner cavity of the accommodating groove, the tail end of the second hinged protrusion is connected to the detection end of the pressure sensor, the tail end of the second hinged protrusion is slidably connected to the inner cavity side wall of the accommodating groove, and the head end of the second hinged protrusion protrudes from the head end surface of the inner rod; A fillet portion, disposed at the intersection of the head end surface of the second hinged protrusion and the top surface of the second hinged protrusion; A second hinge hole is formed on the second hinge protrusion, and a central axis of the second hinge hole is colinear with a central axis of the rounded corner portion; An assembly groove is provided at the head end of the second hinged protrusion, the assembly groove is exposed on the top surface of the second hinged protrusion, the first hinged protrusion is movably inserted in the assembly groove, and the central axes of the first hinged hole and the second hinged hole are colinear; A screw rod is inserted into the second hinge hole and the first hinge hole, and is used to hinge the head end of the second hinge protrusion to the first hinge protrusion; The nut is sleeved on the screw rod, and the nut is threadably connected to the screw rod, and is used to lock the screw rod on the second hinged protrusion and the first hinged protrusion.

[0011] Furthermore, the auxiliary docking module also includes: a guide component, which is arranged on a pair of bearing brackets and is used to guide the pipes to be laid.

[0012] Furthermore, the one-way damping telescopic rod comprises: A first guide member is fixedly arranged on the fixed bracket, the first guide member is a cylindrical member, and the head end of the first guide member adopts an open design; The second guide member is movably inserted into the inner cavity of the first guide member, the tail end of the second guide member is slidably connected with the inner cavity side wall of the first guide member along the axial direction of the first guide member, the second guide member is a cylindrical member, the head end of the second guide member adopts an open design, and the circumferential side wall surface of the second guide member is closely attached to the circumferential inner cavity side wall surface of the first guide member; A first elastic member is disposed in the inner cavity of the first guide member, and two ends of the first elastic member are respectively connected to the inner cavity bottom wall of the first guide member and the tail end of the second guide member, so as to drive the second guide member to reset; An air guide hole is provided at the rear end of the second guide member, and the air guide hole communicates the inner cavity of the second guide member with the inner cavity of the first guide member; A first air guide tube is arranged on the circumferential outer wall of the first guide member, and one end of the first air guide tube is communicated with the inner cavity of the first guide member; A second air guide tube is arranged on the circumferential outer wall of the first guide member, and one end of the second air guide tube is communicated with the inner cavity of the first guide member; A one-way valve, arranged on the first air duct, for controlling the flow direction of the medium flowing through the first air duct; An electrically controlled valve, disposed on the second air duct, for adjusting the flow of the second air duct; A third guide member is movably inserted into the inner cavity of the second guide member, the tail end of the third guide member is slidably connected to the inner cavity side wall of the second guide member along the axial direction of the second guide member, the head end of the third guide member is hinged to the push plate, and the circumferential side wall surface of the third guide member is closely attached to the circumferential inner cavity side wall surface of the second guide member; The second elastic member is arranged in the inner cavity of the second guide member, and the two ends of the second elastic member are respectively connected to the inner cavity bottom wall of the second guide member and the tail end of the third guide member, so as to drive the third guide member to reset.

[0013] Furthermore, the guide component comprises: A second assembly notch is provided on a side plate of the support bracket close to a pipe port, and the second assembly notch is exposed on a top surface of the side plate; A guide rod is fixedly arranged on the bottom wall of the inner cavity of the second assembly notch, and the guide rod is vertically arranged along the height direction of the bearing bracket; An assembly plate is arranged on the outer sides of a pair of bearing brackets; A pair of second slots are provided on the assembly plate, and the pair of second slots are respectively engaged with a pair of assembly protrusions, so as to fix the assembly plate on the pair of bearing brackets; A tubular guide piece is fixedly arranged on the assembly plate, and the tubular guide piece is movably sleeved on the guide rod to guide the assembly plate; The guide plate is fixedly arranged on the top of the assembly plate, and the guide plate extends toward the outside of the pipe to guide the pipe to be laid.

[0014] In another embodiment of the present invention, a PCCP pipe hoisting and laying method is proposed, which is implemented by using the above-mentioned PCCP pipe hoisting and laying device, and includes the following steps: Set up height limit frames on both sides of the high-voltage wires on the construction access road; A pair of auxiliary docking modules are arranged opposite to each other on both sides of the pipe that has been laid; The crawler crane hoists and moves the pipes to be laid into the foundation pit; A pair of gantry cranes hoist and move the pipes to be laid to the vicinity of the pipes that have already been laid; Connect the execution end of the winch to the pipe to be laid; Apply lubricant to the pipe openings of the pipes to be laid; A pair of gantry cranes lift the pipes to be laid again, and connect the pipe ends of the pipes to be laid with the pipe ends of the laid pipes; A pair of auxiliary docking modules are arranged opposite to each other on both sides of the pipe to be laid to position the pipe to be laid with soil.

[0015] The PCCP pipe hoisting and laying device according to the embodiment of the present invention has the following beneficial effects: 1. This device sets guide rails, gantry cranes, winches and control terminals in the foundation pit, so that only one person can control a pair of gantry cranes and winches to work together to complete the purpose of pipe hoisting and docking operations, thereby solving the problem of high safety risks in pipe hoisting and docking operations in the prior art.

[0016] 2. The device arranges a hinge mechanism between the inner rod head end of the electric telescopic rod and the push plate and arranges a one-way damping telescopic rod on the lower side of the electric telescopic rod, so that the electric telescopic rod can flip toward the side of the fixed bracket with the rotation connection between the one-way damping telescopic rod and the push plate as a fulcrum during the process of driving the push plate to move toward the side of the fixed bracket. In this process, the flipping action of the lower part of the push plate is used to further press the soil located in the lower part of the inner cavity of the filling cavity, so that part of the soil located in the upper part of the inner cavity of the filling cavity can collapse to the lower part of the inner cavity of the filling cavity, so that it can be compacted to the lower part of the inner cavity of the filling cavity later, so as to achieve the purpose of enhancing the compactness of the soil filled to the bottom of the pipe by the device, thereby enhancing the soil filling effect of the cushioning component.

[0017] 3. The device fills soil into the filling cavity through the cushioning component, which can be used as a support for the pipe to prevent the pipe from lateral shaking, and the soil filled in the filling cavity can also be used as a support for the bearing bracket to prevent the bearing bracket from a large degree of lateral flipping when the pipe to be laid hits the guide plate, thereby enhancing the assembly stability of the bearing bracket.

[0018] It is to be understood that both the foregoing general description and the following detailed description are exemplary, and are intended to provide further explanation of the technology as claimed. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the main viewing angle when lifting pipes using an embodiment of the present invention; Figure 2 A schematic diagram of a side-view operation when lifting a pipe using an embodiment of the present invention; Figure 3 A schematic diagram of assembling a pair of supporting brackets of auxiliary docking modules according to an embodiment of the present invention; Figure 4 A parts diagram of a load-bearing bracket according to an embodiment of the present invention; Figure 5 It is a schematic diagram of assembling a cushioning assembly according to an embodiment of the present invention; Figure 6 for Figure 5 A partial enlarged schematic diagram of the middle A area; Figure 7 It is a schematic diagram of the structural decomposition of a cushioning assembly according to an embodiment of the present invention; Figure 8A parts diagram of a feeding channel according to an embodiment of the present invention; Fig. 9 is a schematic diagram of the structural decomposition of the hinge mechanism according to an embodiment of the present invention; Fig.10 It is a schematic diagram of assembling a one-way damping telescopic rod according to an embodiment of the present invention; Fig.11 is a schematic diagram of the internal structure of a one-way damping telescopic rod according to an embodiment of the present invention; Fig.12 It is a schematic diagram of the flipping action of the push plate in the process of retreating and resetting according to an embodiment of the present invention; Fig.13 is a schematic diagram of assembling a pair of guide components of auxiliary docking modules according to an embodiment of the present invention; Fig.14 It is a schematic diagram of the structural decomposition of a guide assembly according to an embodiment of the present invention.

[0020] Description of the accompanying drawings: 1-guide rail, 2-gantry crane, 31-bearing bracket, 311-side plate, 3111-assembly protrusion, 312-bottom plate, 313-baffle, 321-fixed bracket, 322-first assembly notch, 3221-feeding port, 323-feeding channel, 3231-input port, 3232-output port, 3233-first card slot, 324-push plate, 325-one-way damping telescopic rod, 3251-first guide member, 32511-first air guide pipe, 32512-one-way valve, 32513-second air guide pipe, 3252-second guide member, 32521-air guide hole, 3253-first elastic member, 3254-third guide member, 3255-second elastic member, 326-electric telescopic rod, 3261-inner rod, 327-hinge mechanism, 3271-first hinge protrusion, 32711-first hinge hole, 3272-second hinge protrusion, 32721-rounded corner, 32722-second hinge hole, 3273-assembly groove, 3274-screw, 3275-nut, 331-second assembly notch, 332-guide rod, 333-assembly plate, 3331-second slot, 3332-tubular guide member, 334-guide plate, 4-foundation pit. DETAILED DESCRIPTION

[0022] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings to further illustrate the present invention.

[0023] The above and other technical contents, features and effects of the present invention will be clearly presented in the following detailed description of the embodiments with reference to the accompanying drawings. The directional terms mentioned in the following embodiments, such as up, down, left, right, front or back, etc., are only reference directions of the accompanying drawings. Therefore, the directional terms used are used to illustrate and not to limit the present invention. In addition, in all embodiments, the same reference numerals represent the same elements.

[0024] First, combine Figure 1 to Figure 14 A PCCP pipe hoisting and laying device and a laying method thereof according to an embodiment of the present invention are described, which are used for laying PCCP pipes and have a wide range of application scenarios.

[0025] Specifically, Figure 1 , Figure 2 As shown, the PCCP pipe hoisting and laying device of the embodiment of the present invention comprises: a pair of guide rails 1, which are arranged in parallel at the bottom of the inner cavity of the foundation pit 4, and any one of the guide rails 1 is arranged along the guide of the foundation pit 4; a pair of gantries 2, which are arranged on the pair of guide rails 1, and a pair of trolleys (not shown in the figure) of any one of the gantry cranes 2 are respectively connected to the pair of guide rails 1, and the lifting devices of the pair of gantry cranes 2 are respectively connected to the two ends of the pipes, and are used for hoisting and transporting the pipes to be laid; a winch (not shown in the figure), which is fixedly arranged in the foundation pit 4, and the execution end of the winch is connected to the pipe; a control terminal (not shown in the figure), which is electrically connected to the pair of gantries 2 and the winch, and is used to control the operation of the pair of gantry cranes 2 and the winch.

[0026] Further, if Figure 3 As shown, the device further comprises: a pair of auxiliary docking modules, which are arranged in the foundation pit 4, and the pipe is located between the pair of auxiliary docking modules, and the auxiliary docking modules are used to assist the pipe to be laid to dock with the pipe that has been laid.

[0027] Further, if Figure 3 As shown, the auxiliary docking module includes: a pair of bearing brackets 31, which are arranged at the bottom of the inner cavity of the foundation pit 4, and the pair of bearing brackets 31 are located on one side of the pipe for supporting the pipe; a pair of assembly protrusions 3111, which are respectively fixed on the pair of bearing brackets 31, and the pair of assembly protrusions 3111 are arranged in parallel, and any one of the assembly protrusions 3111 is vertically arranged along the height direction of the bearing bracket 31, and the assembly protrusions 3111 are T-shaped protrusions.

[0028] Further, if Figure 3~Figure 4As shown, the load-bearing bracket 31 includes: a bottom plate 312, which is movably arranged in a cavity between the pipe and the bottom of the inner cavity of the foundation pit 4, and a pair of bottom plates 312 of the load-bearing bracket 31 are not connected; a side plate 311, which is fixedly arranged on the top of the bottom plate 312, the side plate 311 is perpendicular to the bottom plate 312, the side plate 311 is arranged in parallel with the pipe, and a pair of side plates 311 of the load-bearing bracket 31 are fitted together; a baffle 313, which is fixedly arranged on the top of the bottom plate 312, the baffle 313 is fixedly connected to the side plate 311, and the baffle 313 is located in a space enclosed by the bottom plate 312, the side plate 311 and the pipe.

[0029] Further, if Figure 3~Figure 5 As shown, the auxiliary docking module further includes: a cushioning assembly, which is arranged on a pair of bearing brackets 31 , and the cushioning assembly is connected to a pair of assembly protrusions 3111 , and is used to fill soil between the pipe and the bottom of the inner cavity of the foundation pit 4 .

[0030] Further, if Figure 3~Figure 8 As shown, the cushioning component includes: a fixed bracket 321, which is fixedly arranged at the bottom of the inner cavity of the foundation pit 4; a pair of first assembly notches 322, which are respectively opened on the side plates 311 of a pair of supporting brackets 31, and the positions of the pair of first assembly notches 322 match each other. The pair of first assembly notches 322 are combined to form a feed port 3221, and the feed port 3221 is connected to the cavity between the pair of baffles 313; a feeding channel 323, which is arranged on one side of a pair of supporting brackets 31, and the input port 3231 of the feeding channel 323 is arranged at the top of the feeding channel 323, and the output port 3232 of the feeding channel 323 is connected to the feeding port 3221; a pair of first card slots 3233, which are opened on the end surface of the output port 3232 of the feeding channel 323, and the pair of first card slots 32 33 are respectively engaged with a pair of assembly protrusions 3111, and are used to fix the feeding channel 323 on a pair of bearing brackets 31; the push plate 324 is movably arranged in the inner cavity of the feeding channel 323, and the push plate 324 matches the radial cross-sectional shape of the inner cavity of the feeding channel 323; the one-way damping telescopic rod 325 is fixedly arranged on the fixed bracket 321, and the head end of the one-way damping telescopic rod 325 is hinged to the push plate 324; the electric telescopic rod 326 is arranged on the fixed bracket 321, and the tail end of the electric telescopic rod 326 is hinged to the fixed bracket 321; the hinge mechanism 327 is arranged at the head end of the inner rod 3261 of the electric telescopic rod 326, and the hinge mechanism 327 is connected to the push plate 324, and is used to hinge the head end of the inner rod 3261 on the push plate 324.

[0031] During the operation of the soil cushioning assembly, the user fills soil into the upper feeding channel 323 through the input port 3231 of the feeding channel 323, and then the electric telescopic rod 326 and the one-way damping telescopic rod 325 drive the push plate 324 to push the soil toward the feeding port 3221, and push the soil through the feeding port 3221 into the filling cavity surrounded by the circumferential outer wall of the pipe and the bottom plate 312, side plate 311 and baffle plate 313 of a pair of supporting brackets 31, and reciprocates multiple times to fill and compact the soil in the filling cavity.

[0032] Further, if Figure 5~Figure 7 , Fig. 9 As shown, the hinge mechanism 327 includes: a receiving groove (not shown in the figure), which is opened at the head end of the inner rod 3261, and the receiving groove is arranged along the axial direction of the inner rod 3261; a pressure sensor (not shown in the figure), which is fixedly arranged on the bottom wall of the inner cavity of the receiving groove, and the pressure sensor is electrically connected to the electric telescopic rod 326; a first hinge protrusion 3271, which is fixedly arranged on the push plate 324; a first hinge hole 32711, which is opened on the first hinge protrusion 3271; a second hinge protrusion 3272, which is movably arranged in the inner cavity of the receiving groove, the tail end of the second hinge protrusion 3272 is connected to the detection end of the pressure sensor, the tail end of the second hinge protrusion 3272 is slidably connected to the inner cavity side wall of the receiving groove, and the head end of the second hinge protrusion 3272 protrudes from the head end surface of the inner rod 3261; a rounded corner portion 32721, which is arranged at the intersection of the head end surface of the second hinge protrusion 3272 and the top surface of the second hinge protrusion 3272 The second hinge hole 32722 is provided on the second hinge protrusion 3272, and the central axis of the second hinge hole 32722 is colinear with the central axis of the rounded corner portion 32721; the assembly groove 3273 is provided at the head end of the second hinge protrusion 3272, and the assembly groove 3273 is exposed on the top surface of the second hinge protrusion 3272, and the first hinge protrusion 3271 is movably inserted in the assembly groove 3273, and the first hinge hole 32711 and the second hinge protrusion 32711 are connected to each other. The central axes of the hole 32722 are colinear; the screw rod 3274 is inserted into the second hinge hole 32722 and the first hinge hole 32711, and is used to hinge the head end of the second hinge protrusion 3272 on the first hinge protrusion 3271; the nut 3275 is sleeved on the screw rod 3274, and the nut 3275 is threadedly connected to the screw rod 3274, and is used to lock the screw rod 3274 on the second hinge protrusion 3272 and the first hinge protrusion 3271.

[0033] Further, if Figure 5 , Figure 7 , Fig.10 , Fig.11As shown, the one-way damping telescopic rod 325 includes: a first guide member 3251, which is fixedly arranged on the fixed bracket 321, the first guide member 3251 is a cylindrical member, and the head end of the first guide member 3251 adopts an open design; a second guide member 3252, which is movably inserted in the inner cavity of the first guide member 3251, and the tail end of the second guide member 3252 is slidably connected with the inner cavity side wall of the first guide member 3251 along the axial direction of the first guide member 3251, the second guide member 3252 is a cylindrical member, and the head end of the second guide member 3252 adopts an open design, and the circumferential side wall surface of the second guide member 3252 is closely attached to the inner cavity of the first guide member 3251. The first elastic member 3253 is arranged in the inner cavity of the first guide member 3251, and the two ends of the first elastic member 3253 are respectively connected to the inner cavity bottom wall of the first guide member 3251 and the tail end of the second guide member 3252, so as to drive the second guide member 3252 to reset; the air guide hole 32521 is opened at the tail end of the second guide member 3252, and the air guide hole 32521 connects the inner cavity of the second guide member 3252 with the inner cavity of the first guide member 3251; the first air guide tube 32511 is arranged on the circumferential outer wall of the first guide member 3251, and one end of the first air guide tube 32511 is connected to the first guide member 3251; 251; a second air guide pipe 32513 is arranged on the circumferential outer wall of the first guide member 3251, and one end of the second air guide pipe 32513 is connected to the inner cavity of the first guide member 3251; a one-way valve 32512 is arranged on the first air guide pipe 32511, and is used to control the flow direction of the medium flowing through the first air guide pipe 32511, so that the first air guide pipe 32511 can only be used as a channel for external air to flow into the inner cavity of the first guide member 3251; an electric control valve (not shown in the figure) is arranged on the second air guide pipe 32513, and is used to adjust the flow of the second air guide pipe 32513; a third guide member 3254 is movable Inserted in the inner cavity of the second guide member 3252, the tail end of the third guide member 3254 is slidably connected to the inner cavity side wall of the second guide member 3252 along the axial direction of the second guide member 3252, the head end of the third guide member 3254 is hinged to the push plate 324, and the circumferential side wall surface of the third guide member 3254 is tightly attached to the circumferential inner cavity side wall surface of the second guide member 3252; the second elastic member 3255 is arranged in the inner cavity of the second guide member 3252, and the two ends of the second elastic member 3255 are respectively connected to the inner cavity bottom wall of the second guide member 3252 and the tail end of the third guide member 3254, so as to drive the third guide member 3254 to reset.

[0034] When the electric telescopic rod 326 drives the push plate 324 to push the soil in the feeding channel 323 toward the feeding port 3221, the end face of the inner rod 3261 of the electric telescopic rod 326 abuts against the push plate 324, so that the push plate 324 is vertically displaced toward the feeding port 3221 in the inner cavity of the feeding channel 323, and the one-way damping telescopic rod 325 is stretched under the elastic force of the first elastic member 3253 and the second elastic member 3255, and the outside air passes through the first air guide pipe 32511 and the second air guide pipe 32512. The tube 32513 flows into the inner cavity of the first guide member 3251 and the second guide member 3252; since the width of the lower part of the inner cavity of the filling cavity surrounded by the circumferential outer wall of the tube and the bottom plate 312, the side plate 311 and the baffle plate 313 of the pair of supporting brackets 31 is greater than the width of the upper part of the inner cavity of the filling cavity, after the push plate 324 compacts the soil in the upper part of the inner cavity of the filling cavity, there is still a certain amount of redundant space in the lower part of the inner cavity of the filling cavity, so that the soil in the lower part of the inner cavity of the filling cavity is still relatively loose; Figure 5~Figure 12 As shown, in the process of the electric telescopic rod 326 driving the push plate 324 to move away from the filling cavity, the one-way damping telescopic rod 325 contracts accordingly, and the outside air only flows out from the inner cavity of the first guide member 3251 and the second guide member 3252 through the second air guide tube 32513, thereby increasing the contraction resistance of the one-way damping telescopic rod 325; in the process of the electric telescopic rod 326 driving the push plate 324 to move in the direction away from the filling cavity, the push plate 324 is flipped backward with the hinge position between the push plate 324 and the one-way damping telescopic rod 325 as the fulcrum, thereby causing the bottom of the push plate 324 to flip forward, further pressing the soil located in the lower part of the inner cavity of the filling cavity, so that part of the soil located in the upper part of the inner cavity of the filling cavity can collapse to the lower part of the inner cavity of the filling cavity, and the above steps are repeated in a reciprocating cycle, so that the soil collapsed in the lower part of the inner cavity of the filling cavity can be subsequently compacted to the lower part of the inner cavity of the filling cavity, so as to achieve the purpose of enhancing the compactness of the soil filled to the bottom of the pipe by the device.

[0035] Further, if Figure 3 , Figure 4 , Fig.13 As shown, the auxiliary docking module further includes: a guide assembly, which is arranged on a pair of supporting brackets 31 and is used to guide the pipes to be laid.

[0036] Further, if Figure 3 , Figure 4 , Fig.13 , Fig.14As shown, the guide assembly includes: a second assembly notch 331, which is provided on the side plate 311 of the load-bearing bracket 31 near the side of the pipe port, and the second assembly notch 331 is exposed on the top surface of the side plate 311; a guide rod 332, which is fixedly arranged on the bottom wall of the inner cavity of the second assembly notch 331, and the guide rod 332 is vertically arranged along the height direction of the load-bearing bracket 31; an assembly plate 333, which is arranged on the outer side of a pair of load-bearing brackets 31; a pair of second card grooves 3331, which are provided on the assembly plate 333, and the pair of second card grooves 3331 are respectively engaged with a pair of assembly protrusions 3111, and are used to fix the assembly plate 333 on the pair of load-bearing brackets 31; a tubular guide member 3332, which is fixedly arranged on the assembly plate 333, and the tubular guide member 3332 is movably sleeved on the guide rod 332, and is used to guide the assembly plate 333; a guide plate 334, which is fixedly arranged on the top of the assembly plate 333, and the guide plate 334 extends toward the outer side of the pipe, and is used to guide the pipe to be laid.

[0037] When the gantry crane 2 is lifting the pipe to be laid and docking its pipe mouth with the pipe mouth that has been laid, first, the user removes the cushioning assembly of a pair of auxiliary docking modules from the supporting bracket 31, and then, the user respectively engages the pair of second slots 3331 provided on the assembly plate 333 with the pair of assembly protrusions 3111 provided on the pair of supporting brackets 31, and uses the assembly plate 333 to block the feed port 3221. At the same time, the user puts the tubular guide 3332 provided on the assembly plate 333 on the guide rod 332, so as to achieve the purpose of fixing the assembly plate 333 and the guide plate 334 on the pair of supporting brackets 31; after the user completes the assembly of the assembly plate 333 and the guide plate 334 of a pair of auxiliary docking modules, the user controls the gantry crane 2 to lift the pipe to be laid, and moves it to the top of the gap between the pair of guide plates 334, and then the user controls the pipe to slowly descend, and moves the pipe from the pair of guide plates 334 to the top of the gap between the pair of guide plates 334. The top of the plate 334 is lowered between the pair of guide plates 334 until the pipe mouth of the pipe to be laid is aligned with the pipe mouth of the laid pipe. In this process, the pair of guide plates 334 play an auxiliary guiding role for the pipe to be laid to prevent the pipe from being unable to be quickly aligned with the pipe mouth of the laid pipe due to slight shaking of the pipe in the air during the lifting and transportation process. After the pipe mouths are aligned, the user controls the gantry crane 2 to connect the pipe mouth of the pipe to be laid with the pipe mouth of the laid pipe; when the pipe mouth of the pipe shakes slightly during the process of lowering the pipe mouth between the pair of guide plates 334, the pair of guide plates 334 can help it quickly stabilize by blocking the pipe. In this process, when the guide plate 334 is hit by the pipe, it will be subjected to a force to flip toward the side of the fixed bracket 321, driving the bottom plate 312 of the load-bearing bracket 31 to tilt upward, expanding the gap between the bottom plate 312 and the bottom of the foundation pit 4, and facilitating the user to disassemble the load-bearing bracket 31 later.

[0038] After the pipe to be laid is connected with the pipe mouth of the laid pipe, the user removes the guide assembly and the load-bearing bracket of the auxiliary docking module on both sides of the laid pipe, and rearranges the load-bearing bracket and the cushioning assembly of a pair of auxiliary docking modules on both sides of the docked pipe, and uses the cushioning assembly of the auxiliary docking module to fill the bottom of the docked pipe to prevent the docked pipe from shaking slightly sideways after the user removes the sling of the gantry crane 2 from the docked pipe. After the filling of the bottom of the docked pipe is completed, the staff can enter the inner cavity of the pipe to carry out subsequent operations.

[0039] The disassembly process of a pair of load-bearing brackets equipped with guide assemblies is as follows. First, the user removes the assembly plate 333 and the guide plate 334 from the pair of load-bearing brackets 31. Then, the user controls the pair of load-bearing brackets 31 to move away from each other and separate the pair of load-bearing brackets 31. This completes the disassembly of the pair of load-bearing brackets 31, and the soil compacted at the bottom of the pipe remains at the bottom of the pipe.

[0040] In another embodiment of the present invention, a PCCP pipe hoisting and laying method is proposed, which is implemented by using the above-mentioned PCCP pipe hoisting and laying device, and includes the following steps: Step S1: setting height limit frames on both sides of the high-voltage wire on the construction access road; Step S2: a pair of auxiliary docking modules are arranged opposite to each other on both sides of the pipe that has been laid.

[0041] Step S3: The crawler crane hoists and transports the pipes to be laid into the foundation pit 4.

[0042] Step S4: A pair of gantry cranes 2 use their wire ropes and guide chains to lift and transport the pipes to be laid to the vicinity of the pipes that have been laid.

[0043] Step S5: The winch is fixedly arranged at an uphill position of the pipe to be laid, and the execution end of the winch is connected to the pipe to be laid.

[0044] Step S6: Apply lubricant to the pipe opening of the pipe to be laid.

[0045] Step S7: A pair of gantry cranes 2 lift the pipes to be laid again, and connect and install the pipe ends of the pipes to be laid with the pipe ends of the laid pipes.

[0046] Furthermore, during the implementation of step S7, a winch is used to pull the pipe to be laid tightly to prevent the pipe from shaking greatly, and the pipe to be laid is installed by an inner pulling method.

[0047] Preferably, step S2 includes the following sub-steps: Step S21: Arrange a pair of supporting brackets 31 on one side of the laid pipe.

[0048] Step S22 : Assemble the cushioning assembly onto the pair of supporting brackets 31 , so that the pair of first slots 3233 are respectively engaged with the pair of assembly protrusions 3111 .

[0049] Step S23 : Filling the inner cavity of the upper feeding channel 323 with soil multiple times through the input port 3231 .

[0050] Step S24: the electric telescopic rod 326 drives the push plate 324 to reciprocate along the guide of the feeding channel 323, pushing and compacting the soil in the feeding channel 323 into the cavity between a pair of baffles, and supporting the laid pipe.

[0051] Step S25: removing the cushioning assembly from the pair of supporting brackets 31 .

[0052] Step S26: Assemble the guide assembly onto a pair of supporting brackets 31 , so that the pair of second slots 3331 are respectively engaged with the pair of assembly protrusions 3111 , and the feed port 3221 is blocked by the assembly plate 333 .

[0053] Above, refer to Figure 1 to Figure 14 The PCCP pipe hoisting and laying device according to an embodiment of the present invention is described, which has the following beneficial effects: 1. This device sets a guide rail 1, a gantry crane 2, a winch and a control terminal in the foundation pit 4, so that only one person can control a pair of gantry cranes 2 and winches to work together to complete the purpose of pipe hoisting and docking operations, thereby solving the problem of high safety risks in pipe hoisting and docking operations in the prior art.

[0054] 2. The device provides a hinge mechanism 327 between the head end of the inner rod 3261 of the electric telescopic rod 326 and the push plate 324, and provides a one-way damping telescopic rod 325 on the lower side of the electric telescopic rod 326, so that the electric telescopic rod 326 can be turned toward the side of the fixed bracket 321 with the rotation connection between the one-way damping telescopic rod 325 and the push plate 324 as a fulcrum during the process of driving the push plate 324 to move toward the side of the fixed bracket 321. In this process, the turning action of the lower part of the push plate 324 is used to further press the soil located in the lower part of the inner cavity of the filling cavity, so that part of the soil located in the upper part of the inner cavity of the filling cavity can collapse to the lower part of the inner cavity of the filling cavity, so that it can be compacted to the lower part of the inner cavity of the filling cavity later, so as to achieve the purpose of enhancing the compactness of the soil filled to the bottom of the pipe by the device, thereby enhancing the soil filling effect of the cushioning component.

[0055] 3. The device fills soil into the filling cavity through the soil cushioning assembly, which can be used as a support for the pipe to prevent the pipe from lateral shaking, and the soil filled in the filling cavity can also be used as a support for the bearing bracket 31 to prevent the bearing bracket 31 from a large degree of lateral flipping when the pipe to be laid hits the guide plate 334, thereby enhancing the assembly stability of the bearing bracket 31.

[0056] It should be noted that, in this specification, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprises..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0057] Although the content of the present invention has been described in detail through the above preferred embodiments, it should be appreciated that the above description should not be considered as a limitation of the present invention. After reading the above content, it will be apparent to those skilled in the art that various modifications and substitutions of the present invention will occur. Therefore, the protection scope of the present invention should be limited by the appended claims.

Claims

1. A PCCP pipe hoisting and laying device, characterized in that: Include: A pair of guide rails are arranged in parallel at the bottom of the inner cavity of the foundation pit, and any one of the guide rails is arranged along the guide of the foundation pit; A pair of gantry cranes are arranged on the pair of guide rails, a pair of trolleys of any one of the gantry cranes are respectively connected to the pair of guide rails, and a lifting device of the pair of gantry cranes is respectively connected to both ends of the pipes, for lifting and transporting the pipes to be laid; A winch, fixedly arranged in the foundation pit, wherein the execution end of the winch is connected to the pipe; A control terminal, electrically connected to the pair of gantry cranes and the hoist, and used to control the operation of the pair of gantry cranes and the hoist; A pair of auxiliary docking modules are arranged in the foundation pit, and the pipe is located between the pair of auxiliary docking modules. The auxiliary docking modules are used to assist the pipe to be laid to dock with the pipe that has been laid.

2. The PCCP pipe hoisting and laying device according to claim 1 is characterized in that: The auxiliary docking module comprises: A pair of bearing brackets are arranged at the bottom of the inner cavity of the foundation pit, and the pair of bearing brackets are located on one side of the pipe and are used to support the pipe; A pair of assembly protrusions are respectively fixedly arranged on the pair of bearing brackets.

3. The PCCP pipe hoisting and laying device as claimed in claim 2, characterized in that: The bearing bracket comprises: A bottom plate, movably disposed in the cavity between the pipe and the bottom of the inner cavity of the foundation pit; A side plate, fixedly arranged on the top of the bottom plate, the side plate is perpendicular to the bottom plate, and the side plate is arranged in parallel with the pipe; A baffle is fixedly arranged on the top of the bottom plate, the baffle is fixedly connected to the side plate, and the baffle is located in a space surrounded by the bottom plate, the side plate and the pipe.

4. The PCCP pipe hoisting and laying device as claimed in claim 3 is characterized in that: The auxiliary docking module further comprises: a padding component, which is arranged on the pair of bearing brackets, and the padding component is connected to the pair of assembly protrusions and is used for filling soil between the pipe and the bottom of the inner cavity of the foundation pit.

5. The PCCP pipe hoisting and laying device as claimed in claim 4, characterized in that: The cushioning component comprises: A fixed bracket, fixedly arranged at the bottom of the inner cavity of the foundation pit; A pair of first assembly notches are respectively provided on the side plates of the pair of bearing brackets, the positions of the pair of first assembly notches match each other, the pair of first assembly notches are combined to form a feed inlet, and the feed inlet is connected to the cavity between the pair of baffles; A feeding channel is arranged on one side of the pair of supporting brackets, an input port of the feeding channel is arranged on the top of the feeding channel, and an output port of the feeding channel is connected with the feeding port; A pair of first clamping grooves are provided on the end surface of the output end of the feeding channel, and the pair of first clamping grooves are respectively clamped with the pair of assembly protrusions to fix the feeding channel on the pair of bearing brackets; A push plate, movably disposed in the inner cavity of the feeding channel, wherein the push plate matches the radial cross-sectional shape of the inner cavity of the feeding channel; A one-way damping telescopic rod is fixedly arranged on the fixed bracket, and the head end of the one-way damping telescopic rod is hinged to the push plate for elastically supporting the push plate; An electric telescopic rod is arranged on the fixed bracket, and the tail end of the electric telescopic rod is hinged to the fixed bracket; The hinge mechanism is arranged at the head end of the inner rod of the electric telescopic rod. The hinge mechanism is connected to the push plate and is used to hinge the head end of the inner rod to the push plate.

6. The PCCP pipe hoisting and laying device as claimed in claim 5, characterized in that: The hinge mechanism comprises: A receiving groove is provided at the head end of the inner rod, and the receiving groove is arranged along the axial direction of the inner rod; A pressure sensor, fixedly disposed on the bottom wall of the inner cavity of the accommodating groove, the pressure sensor being electrically connected to the electric telescopic rod; A first hinged protrusion, fixedly disposed on the push plate; A first hinge hole is provided on the first hinge protrusion; A second hinged protrusion is movably disposed in the inner cavity of the accommodating groove, the tail end of the second hinged protrusion is connected to the detection end of the pressure sensor, the tail end of the second hinged protrusion is slidably connected to the inner cavity side wall of the accommodating groove, and the head end of the second hinged protrusion protrudes from the head end surface of the inner rod; a fillet portion, disposed at the intersection of the head end surface of the second hinged protrusion and the top surface of the second hinged protrusion; A second hinge hole is formed on the second hinge protrusion, wherein the central axis of the second hinge hole is colinear with the central axis of the rounded corner portion; An assembly groove is formed at the head end of the second hinged protrusion, the assembly groove is exposed on the top surface of the second hinged protrusion, the first hinged protrusion is movably inserted in the assembly groove, and the central axes of the first hinged hole and the second hinged hole are colinear; A screw rod is inserted into the second hinge hole and the first hinge hole, and is used to hinge the head end of the second hinge protrusion to the first hinge protrusion; A nut is sleeved on the screw rod, and the nut is threadedly connected to the screw rod, and is used to lock the screw rod on the second hinge protrusion and the first hinge protrusion.

7. The PCCP pipe hoisting and laying device as claimed in claim 5, characterized in that: The one-way damping telescopic rod comprises: A first guide member is fixedly arranged on the fixed bracket, the first guide member is a cylindrical member, and the head end of the first guide member adopts an open design; A second guide member is movably inserted into the inner cavity of the first guide member, the tail end of the second guide member is slidably connected with the inner cavity side wall of the first guide member along the axial direction of the first guide member, the second guide member is a cylindrical member, the head end of the second guide member adopts an open design, and the circumferential side wall surface of the second guide member is closely attached to the circumferential inner cavity side wall surface of the first guide member; A first elastic member is disposed in the inner cavity of the first guide member, and two ends of the first elastic member are respectively connected to the inner cavity bottom wall of the first guide member and the tail end of the second guide member, so as to drive the second guide member to reset; an air guide hole, which is provided at the rear end of the second guide member, and the air guide hole connects the inner cavity of the second guide member with the inner cavity of the first guide member; a first air guide tube, arranged on a circumferential outer wall of the first guide member, wherein one end of the first air guide tube is in communication with an inner cavity of the first guide member; a second air guide tube, arranged on the circumferential outer wall of the first guide member, one end of the second air guide tube being in communication with the inner cavity of the first guide member; a one-way valve, disposed on the first air duct, for controlling a flow direction of a medium flowing through the first air duct; an electrically controlled valve, disposed on the second air duct, for adjusting the flow of the second air duct; a third guide member, movably inserted into the inner cavity of the second guide member, the tail end of the third guide member being slidably connected to the inner cavity side wall of the second guide member along the axial direction of the second guide member, the head end of the third guide member being hinged to the push plate, and the circumferential side wall surface of the third guide member being in close contact with the circumferential inner cavity side wall surface of the second guide member; The second elastic member is arranged in the inner cavity of the second guide member, and the two ends of the second elastic member are respectively connected to the inner cavity bottom wall of the second guide member and the tail end of the third guide member, so as to drive the third guide member to reset.

8. The PCCP pipe hoisting and laying device as claimed in claim 3, characterized in that: The auxiliary docking module further includes: a guide assembly, which is arranged on the pair of bearing brackets and is used to guide the pipe to be laid.

9. The PCCP pipe hoisting and laying device as claimed in claim 8, characterized in that: The guide assembly comprises: A second assembly notch is provided on the side plate of the support bracket close to the pipe port, and the second assembly notch is exposed on the top surface of the side plate; A guide rod, fixedly arranged on the bottom wall of the inner cavity of the second assembly notch, and the guide rod is vertically arranged along the height direction of the supporting bracket; An assembly plate, arranged on the outer sides of the pair of bearing brackets; A pair of second card slots are provided on the assembly plate, the pair of second card slots are respectively engaged with the pair of assembly protrusions, and are used to fix the assembly plate on the pair of bearing brackets; A tubular guide member, fixedly arranged on the assembly plate, and movably sleeved on the guide rod, for guiding the assembly plate; A guide plate is fixedly arranged on the top of the assembly plate, and the guide plate extends toward the outside of the pipe and is used for guiding the pipe to be laid.

10. A method for hoisting and laying a PCCP pipe, implemented by using the PCCP pipe hoisting and laying device according to any one of claims 1 to 9, characterized in that: The following steps are included: Set up height limit frames on both sides of the high-voltage wires on the construction access road; Arranging the pair of auxiliary docking modules opposite to each other on both sides of the pipe that has been laid; The crawler crane hoists and moves the pipes to be laid into the foundation pit; The pair of gantry cranes hoist and transport the pipes to be laid to the vicinity of the pipes that have been laid; Connecting the execution end of the hoist to the pipe to be laid; Applying lubricant to the pipe opening of the pipe to be laid; The pair of gantry cranes lift the pipe to be laid again, and connect the pipe opening of the pipe to be laid with the pipe opening of the laid pipe; The pair of auxiliary docking modules are arranged opposite to each other on both sides of the pipe to be laid to perform soil padding and positioning for the pipe to be laid.

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